SN74LS19AN Texas Instruments In Stock
SN74LS19AN is a hex Schmitt-trigger inverter IC by Texas Instruments. Key specs: 6 inverter channels, Schmitt-trigger inputs with hysteresis, 74LS-series TTL logic, DIP-14 package. From $1.08, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.0800(MOQ 178)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74LS19AN?
- 6 independent Schmitt-trigger inverter channels in a single package
- TTL-compatible Schmitt-trigger inputs provide hysteresis for noise immunity
- 74LS-series low-power Schottky technology for reduced power consumption
- Standard DIP-14 through-hole package for easy breadboard and PCB integration
- Wide operating voltage range compatible with standard 5V TTL systems
What is SN74LS19AN used for?
The SN74LS19AN is widely used in digital logic systems where clean signal transitions are required despite noisy or slowly-changing input signals. It is ideal for waveform shaping, signal conditioning, and debouncing mechanical switches in industrial control and embedded systems. The device also finds application in oscillator circuits, level conversion, and general-purpose logic inversion in telecommunications and consumer electronics designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for SN74LS19AN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74LS19AN and what does it do?
The SN74LS19AN is a hex Schmitt-trigger inverter IC from Texas Instruments. It contains six independent inverting channels, each with Schmitt-trigger inputs that provide built-in hysteresis. This makes it ideal for converting noisy or slowly-transitioning signals into clean digital outputs, improving noise immunity in TTL logic systems.
What are the key electrical specifications of the SN74LS19AN?
The SN74LS19AN operates on a standard 5V VCC supply and features TTL-compatible Schmitt-trigger inputs with positive-going threshold (VT+) typically around 1.6V and negative-going threshold (VT-) typically around 0.8V. Propagation delay is typically 15ns, and each output can source/sink standard TTL fan-out currents. The device is housed in a 14-pin DIP package.
What are typical applications for the SN74LS19AN?
Typical applications include waveform shaping of slow or noisy input signals, switch and relay contact debouncing, oscillator and pulse generator circuits, signal level conditioning in industrial and embedded systems, and general-purpose TTL logic inversion where noise margin is critical.
What is the package type and how should the SN74LS19AN be mounted?
The SN74LS19AN comes in a 14-pin DIP (Dual In-line Package) through-hole package, making it suitable for breadboard prototyping, through-hole PCB soldering, and socket-based designs. The 'N' suffix in the part number designates the plastic DIP package. Operating temperature range is 0°C to 70°C for the commercial grade.
Are there pin-compatible alternatives or replacements for the SN74LS19AN?
Yes, the SN74LS19AN is functionally and pin-compatible with other 74LS19 variants from different manufacturers such as the MM74LS19N and DM74LS19N. For modern designs, the 74HC14 or 74HCT14 hex Schmitt-trigger inverter can serve as a higher-performance, lower-power replacement, though logic thresholds differ between CMOS and TTL families.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 178+ | $1.6900 | $300.82 |
| 500+ | $1.2200 | $610.00 |
| 1000+ | $1.1500 | $1150.00 |
| 10000+ | $1.0800 | $10800.00 |
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